Objects in the distance may be less Arabic than they appear

On the way into town for breakfast at the Edinburgh City Cafe, I spotted a symbol on the outside of a block of flats that I didn't recognise, but looked like Arabic to me.



I posted it on Facebook, and got a bunch of suggestions as to what it might be, and who might be able to help - including a few that it might be Hebrew instead.

Hebrew looks like this:

while Arabic looks like this:


And the symbols in the image looked more like the curves of Arabic than the angles of Hebrew. But a few people also suggested Masonic symbols, so I walked back down the road after we got home and took another, better photo:



Okay, yes, that's clearly the letter's J and D, with some squiggly bits around them because the architect was all posh and stuff. No historical mystery at all. Dangit.

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Original post on Dreamwidth - there are comments there.